Home / 281,428.08-388,334.70-160,562.40

Finding the Fourth Proportional to 281,428.08, 388,334.70 and 160,562.40

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Solution

The fourth proportional to 281,428.08, 388,334.70 and 160,562.40 is: 221,555.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,428.08 : 388,334.70 = 160,562.40 : x
  2. Step 2: Convert to fraction form
    281,428.08/388,334.70 = 160,562.40/x
  3. Step 3: Cross multiply
    281,428.08x = 388,334.70 × 160,562.40
  4. Step 4: Simplify right side
    281,428.08x = 62,351,951,435.28
  5. Step 5: Solve for x
    x = 62,351,951,435.28/281,428.08
  6. Step 6: Final answer
    x = 221,555.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.